IUPAC-NIST Solubilities Database

IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Solubility System: Ethene with 2, 2' -Dimethylbutane (Neo-hexane)

Components:
   (1) Ethene; C2H4; [74-85-1]  NIST Chemistry WebBook for detail
   (2) 2, 2' -Dimethylbutane (Neo-hexane); C6H14; [75-83-2]  NIST Chemistry WebBook for detail

Original Measurements:
   Tilquin, B.; Decanniere, L.; Fontaine, R.; Claes, P., Ann. Soc. Sc. Bruxelles (Belgium) 1967, 81, 191-199.

Variables:
   Temperature = 288.15 K
   Pressure = 288.15 K

Prepared By:
   C.L. Young

Experimental Data:   (Subscripts 1,2,3, ..., in column headings refer to components 1,2,3, ...)


t/°C	T/K	Ostwald coefficient L	Ostwald Note	Henry's law constant, K [atm]	Henry Constant Note	Mole Fraction (x₁)	x₁ Note
15.0	288.15	14.56	a	13.32	b	0.07506	b

Notes:
   ^a  Original data at low pressure reported as distribution coefficient; but if Henry's law and ideal gas law apply, distribution coefficient is equivalent to Ostwald coefficient as shown here.
   ^b  Calculated by compiler for a gas partial pressure of 101.325 kPa assuming that Henry's law and ideal gas law apply.

Method/Apparatus/Procedure:
   All glass apparatus used at very low gas partial pressures, containing a replaceable degassed solvent ampule equipped with a breakable point which could be broken by means of a magnetically activated plunger. Quantity of gas fed into system determined by measuring the pressure change in a known volume. Quantity of liquid measured by weight. Pressure change observed after solvent released. Experimental details described by Rzad and Claes, Ref. 1.

Source and Purity of Materials:
   1. Source not given; minimum purity specified as 99.0 mole per cent.
   2. Fluka pure grade; minimum purity specified as 99.0 mole per cent.

Estimated Errors:
   Solubility: δx₁/x₁ = ± 0.01 (estimated by compiler)
   Temperature: δT/K = ± 0.05 (estimated by compiler)

References:
   1. Rzad, S.; Claes, P., Bull. Soc. Chim. Belges 1964, 73, 689.